Breadcrumb Home > Dictionary Cite Meaning of overturn Find definitions for: o•ver•turn Pronunciation: (v.ō"vur-tûrn'n.ō'vur-tûrn"), [key] — v.t. to destroy the power of; overthrow; defeat; vanquish. to turn over on its side, face, or back; upset: to overturn a vase. —v.i. to turn on its side, face, or back; capsize: The boat overturned during the storm. —n. the act of overturning. the state of being overturned. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overturn (Thesaurus) overture Related Content Daily Word Quiz: apotheosis Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language